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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Saint Johns Green, Maryland, is a wintry winter month, with an average temperature fluctuating between 26.2°F (-3.2°C) and 38.1°F (3.4°C). Saint Johns Green experiences its lowest temperatures in January, with an average peak of 38.1°F (3.4°C) and a low of 26.2°F (-3.2°C). Weather in January »
Weather in February
February, the last month of the winter in Saint Johns Green, is another cold month, with an average temperature ranging between min 28.6°F (-1.9°C) and max 42.3°F (5.7°C). Saint Johns Green's entry into February measures an average high-temperature of a still cold 42.3°F (5.7°C), closely parallel to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Saint Johns Green, Maryland, with an average temperature ranging between max 50.5°F (10.3°C) and min 35.6°F (2°C). March's arrival coincides with a subtle temperature rise, moving from February's cold 42.3°F (5.7°C) to a cool 50.5°F (10.3°C). Weather in March »
Weather in April
April in Saint Johns Green, Maryland, is a refreshing spring month, with an average temperature fluctuating between 45.7°F (7.6°C) and 63.1°F (17.3°C). April sees a temperature increase, moving from a fresh 50.5°F (10.3°C) in March to a refreshing 63.1°F (17.3°C). Weather in April »
Weather in May
May, the last month of the spring in Saint Johns Green, is an agreeable month, with an average temperature ranging between min 55.2°F (12.9°C) and max 72.5°F (22.5°C). The start of May brings a shift in the average high-temperature, increasing from April's enjoyable 63.1°F (17.3°C) to a pleasant 72.5°F (22.5°C). Weather in May »
Weather in June
June, the first month of the summer in Saint Johns Green, is a moderately hot month, with an average temperature fluctuating between 80.6°F (27°C) and 63.9°F (17.7°C). Saint Johns Green in June observes a minor temperature shift, with average high-temperatures adjusting from an agreeable 72.5°F (22.5°C) in May to a warm 80.6°F (27°C). Weather in June »
Weather in July
July, like June, in Saint Johns Green, Maryland, is a moderately hot summer month, with an average temperature varying between 68.7°F (20.4°C) and 85.6°F (29.8°C). Saint Johns Green's temperatures peak on average in July, reaching 85.6°F (29.8°C) at their highest and 68.7°F (20.4°C) at their lowest. Throughout July, the heat index is calculated to be a torrid 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Saint Johns Green, Maryland, with an average temperature fluctuating between 83.5°F (28.6°C) and 67.3°F (19.6°C). Saint Johns Green commences August with an average high-temperature of a still moderately hot 83.5°F (28.6°C), maintaining a close resemblance to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Saint Johns Green, Maryland, with an average temperature fluctuating between 60.4°F (15.8°C) and 76.8°F (24.9°C). With the arrival of September, Saint Johns Green notices a mild change in the average high-temperature, sliding from August's moderately hot 83.5°F (28.6°C) to a still warm 76.8°F (24.9°C). Weather in September »
Weather in October
October, like September, in Saint Johns Green, Maryland, is another refreshing autumn month, with an average temperature ranging between min 50.2°F (10.1°C) and max 65.1°F (18.4°C). With the beginning of October, the average high-temperature shows a decrease, transitioning from a moderately hot 76.8°F (24.9°C) in September to an enjoyable 65.1°F (18.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Saint Johns Green, is also a fresh month, with temperature in the range of an average high of 53.1°F (11.7°C) and an average low of 39°F (3.9°C). November's arrival corresponds with a decrease in average high-temperatures, from October's refreshing 65.1°F (18.4°C) to a fresh 53.1°F (11.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Saint Johns Green, Maryland, with an average temperature fluctuating between 32.9°F (0.5°C) and 44.1°F (6.7°C). The transition into December subtly indicates a reduction in the average high-temperature, down to a chilly 44.1°F (6.7°C) from November's cool 53.1°F (11.7°C). Weather in December »
Updated: Aug 1, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
January, characterized by an average high temperature of 38.1°F (3.4°C) and a low temperature of 26.2°F (-3.2°C), is generally the coldest month.
What is the driest month?
January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 2.05" (52mm) of precipitation.
How much does it rain?
Throughout the year, there are 165.5 rainfall days, and 31.65" (804mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 4.9 days and typically aggregates up to 2.4" (61mm) of snow.
How much does it snow?
Throughout the year, there are 16.6 snowfall days, and 7.8" (198mm) of snow is accumulated.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine?
With an average of 5h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the most humid month?
May and October, with an average relative humidity of 77%, are most humid months.
When it does not snow?
May through October are months without snowfall in Saint Johns Green, Maryland.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What part of the year is the hottest?
During the warmest month in Saint Johns Green, July, temperatures average a high of 85.6°F (29.8°C) and a low of 68.7°F (20.4°C).
What is the least humid month?
July is the least humid month, with an average relative humidity of 71%.
What month has the most sunshine?
With an average of 10.8h of sunshine, July has the most sunshine of the year.
What is the rainiest month?
August is the month with the most rainfall. Rain falls for 15.9 days and accumulates 3.74" (95mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Saint Johns Green, MD
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°F).
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure
Saint Johns Green, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Saint Johns Green, MD
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Saint Johns Green, MD
The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall
Saint Johns Green, MD
- Average rainfall in January:
2.05" - Average rainfall in February:
2.24" - Average rainfall in March:
2.48" - Average rainfall in April:
2.48" - Average rainfall in May:
3.11" - Average rainfall in June:
2.52"
- Average rainfall in July:
3.19" - Average rainfall in August:
3.74" - Average rainfall in September:
2.17" - Average rainfall in October:
2.64" - Average rainfall in November:
2.44" - Average rainfall in December:
2.6"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Saint Johns Green, MD
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
17.7 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).
Average snowfall
Saint Johns Green, MD
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Saint Johns Green, MD
- Average snowfall days in January:
4.9 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.9 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Saint Johns Green, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
Saint Johns Green, MD
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
15.2 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Saint Johns Green, MD
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Saint Johns Green, MD
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Saint Johns Green, MD
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Saint Johns Green, Maryland, USA
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